19963797

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{55921}}^1$

素因数の和:55948

約数の個数: 16

約数和(自身を含む): 32211072

約数和(自身を除く): 12247275

約数列:

[1, 3, 7, 17, 21, 51, 119, 357, 55921, 167763, 391447, 950657, 1174341, 2851971, 6654599, 19963797]

約数ペア:

[(1, 19963797), (3, 6654599), (7, 2851971), (17, 1174341), (21, 950657), (51, 391447), (119, 167763), (357, 55921)]